But the kids are doing their part to encourage their mum to eat, including going out for dinner as a family.

"They're onto her, nagging all the time and taking her to restaurants for carbs and salads," the spy says.

"Pax is a great cook and he's always making food for his mum, while Shiloh asks if they can go to her favourite restaurants during their bonding days. Maddox makes sure the house is stocked at all times with food that he hopes Ange will eat."

Her kids are "nagging" her to eat more. (Image: Getty)

Sources believe the stress of Angelina and Brad's epic divorce has placed even more strain on the actress-turned-director, who has been skipping meals as a result.

But Ange is doing her best to act like everything is fine for the sake of her kids.

"Ange can tell what they are doing and she's trying to reassure them that she just forgets to eat sometimes and it's nothing to worry about," the insider dishes.

"Everyone knows the children are her top priority and this split hasn't been easy for them, so the last thing she wants is for them to be feeling like they have to take care of her. That's her job!"

However, starvation can cause side effects such as fainting and dizziness. So if Ange doesn't eat a balanced diet, she could be putting her health in danger.

"Ange really needs to be careful, because if she's not eating, then she's probably feeling weak and dizzy," says the spy.

"The kids are determined to make sure that she's alright, so hopefully this push from them is just what she needs to make her health a priority..."